Compressor Fitting HVAC: Service and Repair

COMPRESSOR MANIFOLD AND TUBE ASSEMBLY

REMOVAL

CAUTION: Refrigerant Compressor Oil (mineral oil) F73Z-19577-AA (Motorcraft YN-9-A) should be used to lubricate R-134a refrigerant system O-ring seals only and should not be added to R-134a refrigerant systems as an A/C compressor lubricant. PAG Refrigerant Compressor Oil (R-134a Systems) F7AZ-19589-DA (Motorcraft YN-12-C) or equivalent meeting Ford specification WSH-M1C231-B only should be used as an A/C compressor lubricant.

NOTE: Installation of a new suction accumulator is not required when repairing the air conditioning system except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

All vehicles
1. With the vehicle in NEUTRAL, position it on a hoist.
2. Recover the refrigerant.
3. Remove the lug wrench.

Vehicles equipped with auxiliary climate control







4. Disconnect the auxiliary line fitting.

All vehicles







5. Disconnect the manifold and tube fitting at the suction accumulator.
- Discard the O-ring seals.







6. Remove the tube clamp.







7. Remove the pin-type retainers and the sight shield.







8. Disconnect the A/C condenser core inlet line.







9. Disconnect the pressure cutoff switch electrical connector.

4x4 vehicles







10. Loosen the A/C manifold and tube bolt and remove the manifold and tube assembly.
- Discard the O-ring seals.

4x2 vehicles







11. Loosen the A/C manifold and tube bolt and remove the manifold and tube assembly.







12. Remove the pressure cutoff/dual function pressure switch.

INSTALLATION
1. To install, reverse the removal procedure.
- Install new O-ring seals lubricated in clean mineral oil.
- Lubricate the refrigerant system with the correct amount of clean PAG oil.

2. Evacuate, leak test and charge the refrigerant system.